Comet Punch hits 2-5 times per turn used. The probability of each interval is shown to the right, with the total power after each hit. Each strike of Comet Punch is treated like a separate attack: Each strike can get a critical hit independently. Abilities that activate on contact (Static, Weak Armor, Iron Barbs etc.) activate for each strike. If the Sturdy ability, Focus Sash, or Focus Band activates before the final hit, the subsequent hit will still deal damage and therefore cause the opponent to faint. If the first hit breaks a Substitute, the second hit will deal damage to the target Pokémon. The move Counter only counters the final hit, but Bide counters the complete damage. The Skill Link ability will cause Comet Punch to always hit the maximum number of times.
In Generations 2-4, if a Focus Sash or Focus Band activates before the final hit, subsequent hits do not cause the holder to faint. In Generations 1-3, Comet Punch ends immediately if any hit breaks a Substitute. In Generation 1, each hit will always deal the same damage – if the first critical hits, so will the rest.